CN102223478A - Electronic video camera - Google Patents
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- CN102223478A CN102223478A CN2011100952650A CN201110095265A CN102223478A CN 102223478 A CN102223478 A CN 102223478A CN 2011100952650 A CN2011100952650 A CN 2011100952650A CN 201110095265 A CN201110095265 A CN 201110095265A CN 102223478 A CN102223478 A CN 102223478A
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- 238000003384 imaging method Methods 0.000 description 29
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/21—Intermediate information storage
- H04N1/2104—Intermediate information storage for one or a few pictures
- H04N1/2112—Intermediate information storage for one or a few pictures using still video cameras
- H04N1/2137—Intermediate information storage for one or a few pictures using still video cameras with temporary storage before final recording, e.g. in a frame buffer
- H04N1/2141—Intermediate information storage for one or a few pictures using still video cameras with temporary storage before final recording, e.g. in a frame buffer in a multi-frame buffer
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/64—Computer-aided capture of images, e.g. transfer from script file into camera, check of taken image quality, advice or proposal for image composition or decision on when to take image
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/667—Camera operation mode switching, e.g. between still and video, sport and normal or high- and low-resolution modes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2101/00—Still video cameras
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Abstract
The invention relates to an electronic video camera, which is characterized in that the video camera comprises a shooting element for continuously outputting image data obtained by performing photoelectric conversion on light of shot articles, a buffer memory temporarily storing image data output from the shooting element, plural image processing parts capable of performing image processing on image data output from the shooting element, and a control part for making the plural image processing parts respectively perform image processing based on the quantity of the image data stored in the buffer memory when the shooting element continuously outputs image data.
Description
Technical field
The present invention relates to the view data of photographing obtained is implemented the electron camera of image processing.
Background technology
In the past, in electron cameras such as Digital Video, except the photograph mode of obtaining a rest image, also be provided with based on predefined frame rate obtain continuously many rest images burst mode, obtain the dynamic image pattern of dynamic image etc.Under the situation of the Digital Video that possesses such burst mode, dynamic image photograph mode, every constant interval from the imaging apparatus output image data, so when the disposal ability of the view data of output being carried out image processing or encoding process is low, the processing time of these processing is elongated, also untreated view data is being carried out processing after photography finishes.Therefore, consider following scheme: dispose two image processing parts that carry out image processing side by side, on one side will distribute to each image processing part from the view data of imaging apparatus output, carry out image processing (with reference to Japanese kokai publication hei 5-227519 communique) to view data on one side.Thus, improve image-capable, and shorten the processing time of image processing.
On the other hand, in to the image processing of obtained view data, consume huge electric power, so when utilizing two above-mentioned image processing part carries out image processing, can consume more electric power.In addition, under the situation that possesses two image processing parts, though the image processing during for continuous shooting photography or dynamic image photography is effective, but when still image photographing, just can tackle by an image processing part, another image processing part is carries out image processing not, therefore wastes electric power.
Summary of the invention
The object of the present invention is to provide the electron camera that can suppress because of the waste of using the power consumption that a plurality of image processing parts produce.
In order to solve the above problems, electron camera of the present invention is characterized in that, possesses: imaging apparatus, and output is by carrying out the view data that opto-electronic conversion obtains to object light continuously; Buffer storage, temporary transient storage is from the view data of above-mentioned imaging apparatus output; A plurality of image processing parts can be to implementing image processing from the view data of above-mentioned imaging apparatus output; And control part, when above-mentioned imaging apparatus has been exported view data continuously, based on the quantity of the above-mentioned view data of in above-mentioned buffer storage, storing, the image processing part that the view data of continuous output is implemented image processing is respectively moved.
In addition, preferred above-mentioned a plurality of image processing parts comprise: first image processing part, no matter how all to move from the output state of the view data of above-mentioned imaging apparatus output; And second image processing part, above-mentioned control part moves this second image processing part; Above-mentioned control part moves above-mentioned second image processing part based on the quantity of the above-mentioned view data of storing in above-mentioned buffer storage.
In addition, preferred above-mentioned control part is based on the result that the quantity and the pre-set threshold of the above-mentioned view data of storing in above-mentioned buffer storage compares, and the image processing part that the view data of above-mentioned continuous output is implemented image processing is respectively moved.
In addition, preferably the quantity of the above-mentioned view data in being stored in above-mentioned buffer storage surpasses under the situation of above-mentioned threshold value, and above-mentioned control part moves the image processing part that the view data of above-mentioned continuous output is implemented image processing respectively.
In addition, electron camera of the present invention is characterized in that, possesses: imaging apparatus, and output is by carrying out the view data that opto-electronic conversion obtains to object light continuously; A plurality of image processing parts can be to implementing image processing from the view data of above-mentioned imaging apparatus output; And control part, when above-mentioned imaging apparatus has been exported view data continuously,, the image processing part that the view data of continuous output is implemented image processing is respectively moved based on the output gap of above-mentioned view data.
In addition, preferred above-mentioned a plurality of image processing parts comprise: first image processing part, no matter how all to move from the output state of the view data of above-mentioned imaging apparatus output; And second image processing part, above-mentioned control part moves this second image processing part; Above-mentioned control part moves above-mentioned second image processing part based on the output gap of above-mentioned view data.
In addition, preferred above-mentioned control part is based on the result that the output gap and the pre-set threshold of above-mentioned view data compares, and the image processing part that the view data of above-mentioned continuous output is implemented image processing is respectively moved.
In addition, preferably under the output gap of above-mentioned view data is situation below the above-mentioned threshold value, above-mentioned control part moves the image processing part that the view data of above-mentioned continuous output is implemented image processing respectively.
In addition, the time of the vertical synchronizing signal of the output gap of preferred above-mentioned view data output when measuring from the shooting beginning till the vertical synchronizing signal of output is next time obtained.
In addition, preferably this electron camera possesses setting operation portion, and when setting the output gap of above-mentioned view data, this setting operation portion is operated.
In addition, electron camera of the present invention is characterized in that, possesses: imaging apparatus, and output is by carrying out the view data that opto-electronic conversion obtains to object light continuously; A plurality of image processing parts can be to implementing image processing from the view data of above-mentioned imaging apparatus output; And control part, when above-mentioned imaging apparatus has been exported view data continuously, based on output resolution ratio, the image processing part that the view data of continuous output is implemented image processing is respectively moved from the above-mentioned view data of above-mentioned imaging apparatus output.
In addition, preferred above-mentioned a plurality of image processing parts comprise: first image processing part, no matter how all to move from the output state of the view data of above-mentioned imaging apparatus output; And second image processing part, above-mentioned control part moves this second image processing part; Above-mentioned control part moves above-mentioned second image processing part based on the output resolution ratio of above-mentioned view data.
In addition, preferred above-mentioned control part is based on the result that the output resolution ratio and the pre-set threshold of above-mentioned view data compares, and the image processing part that the view data of above-mentioned continuous output is implemented image processing is respectively moved.
In addition, preferably surpass under the situation of above-mentioned threshold value at the output resolution ratio of above-mentioned view data, above-mentioned control part moves the image processing part that the view data of above-mentioned continuous output is implemented image processing respectively.
In addition, when preferred above-mentioned control part receives the information that the image processing part that the moves image processing in separately finished at least, the image processing part that moves by above-mentioned control part is stopped.
Description of drawings
Fig. 1 is the figure of the summary of the expression structure of using Digital Video of the present invention.
Fig. 2 is the sequential chart when photographing under the burst mode of first execution mode.
Fig. 3 is the sequential chart when photographing under the burst mode of second execution mode.
Embodiment
＜the first execution mode 〉
Fig. 1 has represented to use an example of Digital Video of the present invention.In Digital Video 10 of the present invention, except the still image photographing of when shutter release button 55 is operated, obtaining a rest image described later, described laterly when shutter release button 55 is carried out complete push, obtain continuously the sequence photography of rest image of predefined quantity with constant interval, can also obtain the dynamic image photography of dynamic image.Below, the pattern that will carry out still image photographing is called the rest image pattern, and the pattern that will carry out the continuous shooting photography is called burst mode, and the pattern that will carry out the dynamic image photography is called the dynamic image pattern and describes.In addition, will be called photography by the behavior that Digital Video 10 obtains image, the processing of Digital Video 10 inside that will carry out when photography be called shooting, describe thus.
As everyone knows, Digital Video 10 is carried out opto-electronic conversion by 16 pairs of image pickup optical systems of imaging apparatus, 15 obtained object lights, obtains view data according to the signal of telecommunication after the opto-electronic conversion.Image pickup optical system 15 is by comprising that the lens group that has omitted illustrated zoom lens, condenser lens etc. constitutes.By omitting illustrated lens actuating device these zoom lens, condenser lens are moved on the optical axis L direction.
Charge coupled device), CMOS (Complementary Metal-Oxide Semiconductor: formation such as CMOS (Complementary Metal Oxide Semiconductor) (transistor)) imaging apparatus 16 is for example by CCD (Charge Coupled Device:.The driving of this imaging apparatus 16 is by driver 21 controls.In addition,, can list the accumulation of the signal charge in each pixel of imaging apparatus 16 is controlled, and the output of signal charge of accumulation is controlled about the control that the driving of imaging apparatus 16 is carried out.Below, will be called picture signal from the signal charge of imaging apparatus 16 outputs, describe thus.In addition, driver 21 controls are all pixels or the driving one part of pixel that drive imaging apparatus 16.That is to say, in when photography, by driving all pixels of imaging apparatus 16, obtain picture signal, when non-photography, so-called the rejecting at interval of the one part of pixel by optionally utilizing imaging apparatus 16 controlled, and obtains picture signal.
(Analog Front End: AFE (analog front end)) circuit 22 comprises not shown agc circuit or CDS circuit to AFE.After implementing gain controlling in the picture signal of 22 pairs of inputs of AFE circuit, removing simulation process such as noise,, be digital signal with analog signal conversion by not shown A/D change-over circuit.The picture signal of numeral exports DFE circuit 23 to.
(Digital Front End: digital front-end) picture signal of 23 pairs of inputs of circuit is carried out noise compensation processing or defect correction processing to DFE.The picture signal that has been implemented these processing is imported first image processing circuit 31 and second image processing circuit 36 respectively.Below, the picture signal of importing first image processing circuit 31 and second image processing circuit 36 respectively is called view data describes.Reference numeral 24 is timing generator (TG:timing generator), and driver 21, AFE circuit 22, DFE circuit 23 are accepted the commutator pulse of this TG24 output, move synchronously.
First image processing circuit 31 begins action when the main power source of Digital Video 10 is connected (ON), stop action when the main power source of Digital Video 10 disconnects (OFF).This first image processing circuit 31 is except carrying out image processing, the encoding process the view data that is stored in first buffer storage 41, also carries out decoding processing to being stored in decoded data in the image file in the storage medium 51, at the image processing of the view data after the decoding processing.This first image processing circuit 31 has the function of control part 32, image processing part 33, coding/decoding portion 34.
Control part 32 will be supplied to image processing part 33, coding/decoding portion 34 from the electric power of supply unit 57, and be supplied to first buffer storage 41.In addition, control part 32 is to image processing part 33, coding/decoding portion 34 output clock pulse, simultaneously to first buffer storage, 41 output clock pulse.Thus, by the each several part of control part 32 controls first image processing circuit 31 and the action of first buffer storage 41.In addition, 32 pairs second image processing circuits of control part, 36 output action signals or action stop signal.Thus, second image processing circuit 36 is at the state (below, be called operate condition) of action with move and switch between the state that stops (below, be called holding state).
The view data of 33 pairs of storages in first storage area 42 of first buffer storage 41 of image processing part is implemented image processing such as white balance processing, color interpolation processing, gamma processing, emphasizing contour processing.About these processing are known processing, therefore omit its detailed content at this.
34 pairs of preview image handling parts of coding/decoding portion 33 have carried out the view data after the image processing and have carried out compressed encoding.In addition, below the view data behind the compressed encoding is called coded data.This coded data writes in second storage area 43 of first buffer storage 41.In addition, under the situation of the view data that obtains by burst mode or dynamic image photograph mode, be transfused to a plurality of view data, so under the situation of these patterns, utilization output number etc. manages view data or coded data.In addition, 34 pairs of coded datas of reading from storage medium 51 of coding/decoding portion are decoded, thereby generate view data.
Second image processing circuit 36 is accepted from the actuating signal of first image processing circuit 31 and action stop signal, thereby switches between holding state and operate condition.For example, under holding state, only to control part 37 supply capabilities described later, not to image processing part 38 and coding/decoding portion 39 supply capabilities.Therefore, even imported view data from DFE circuit 23, this view data also will become the invalid data that does not write second buffer storage 45.On the other hand, under operate condition, except to control part 37 also to image processing part 38 and coding/decoding portion 39 supply capabilities.In this case, the view data of being imported for example is used as effective view data every a view data and treats, and is written into second buffer storage 45.In addition, the view data that does not write second buffer storage 45 is an invalid data.
This second image processing circuit 36 is identical with first image processing circuit 31, possesses control part 37, image processing part 38 and coding/decoding portion 39.In addition, the image processing part 38 in second image processing circuit 36 and the function of coding/decoding portion 39 are identical with the image processing part 33 and the function of coding/decoding portion 34 in first image processing part 31 respectively, therefore, omit its detailed content at this.In addition, the disposal ability of the disposal ability of the image processing that this image processing part 38 the is relevant image processing of being correlated with first image processing circuit 31 has identical disposal ability.
The electric power that control part 37 is supplied with from supply unit 57 to image processing part 38, coding/decoding portion 39, and export clock pulse, control the each several part of second image processing circuit 36 thus.In addition, even becoming under the situation of holding state also from supply unit 57 to these control part 37 supply capabilities.Thus, even second image processing circuit 36 is in holding state, also can discern from the actuating signal of first image processing circuit, 31 inputs.In addition, be under the situation of holding state,, therefore do not carry out processing these parts not to image processing part 38, coding/decoding portion 39 supply capabilities at second image processing part 36.In addition, though be in the view data of also importing under the situation of holding state from DFE circuit 23 at second image processing part 36, control part 37 is handled the view data of input as invalid data.In addition, the actuating signal that control part 37 is accepted from first image processing circuit 31, beginning is powered to each several part, second buffer storage 45 of second image processing circuit 36, and to image processing part 38, coding/decoding portion 39 and second buffer storage, 45 output clock pulse.Thus, by the each several part of control part 32 controls first image processing circuit 31 and the action of first buffer storage 41.
In addition, when all images data of control part 37 storage in to first storage area 46 in second buffer storage 45 have been carried out image processing and encoding process, read out in the coded data of storing in second storage area 47 of second buffer storage 45, and export this coded data to first image processing circuit 31.This coded data is stored in second storage area 43 of first buffer storage 41 via first image processing circuit 31.If all coded datas that will store in second buffer storage 45 export first image processing circuit 31 to, then from first image processing circuit, 31 input action stop signals.Control part 37 is accepted this action stop signal, stops to image processing part 38, coding/decoding portion 39 and second buffer storage, 45 output clock pulse, and stops to they supply capabilities.Thus, the action of image processing part 38, coding/decoding portion 39 and second buffer storage 45 stops.That is to say that second image processing circuit 36 switches to holding state from operate condition.
LCD52 is a kind of mode of display unit, the image that obtains when showing preview image (through image) or photography.The image that obtains during in addition, as photography is for example enumerated thumbnail image (thumbnail image).This thumbnail image is that the photography acquired image data is dwindled the image of handling and generating.In addition, LCD52 also shows the image that logarithmic code video camera 10 is used to set when setting.
CPU54 carries out and has omitted illustrated control program, totally controls the each several part of Digital Video 10 thus.Be connected with shutter release button 55, setting operation portion 56 etc. on this CPU54, CPU54 controls the each several part of Digital Video 10 based on the operation requirement or the control program of these control members.For example, if operated shutter release button 55, then after execution AE processing and AF processing, handle the conditions of exposure that is determined according to AE and carry out the shooting processing.In addition, if operated setting operation portion 56, then can change the various settings in the Digital Video 10.When carrying out this setting, the frame rate value during to the selection of certain pattern in the photograph mode or regeneration mode, burst mode or dynamic image pattern is set.
When supply unit 57 is connected (ON) at the main power source of Digital Video 10, to the each several part supply capability of Digital Video 10.In addition, when the main power source of Digital Video 10 disconnects, stop each several part supply capability to Digital Video 10.
First image processing circuit 31 when then, the sequential chart explanation of use Fig. 2 is carried out photography under the burst mode of first execution mode and the flow process of the processing in second image processing circuit 36.In addition, in the sequential chart of Fig. 2, the situation with ten images of frame rate value sequence photography of 8fps is described under burst mode.In addition, the two field picture among Fig. 2 (frame image) is corresponding to the described view data of Fig. 1.That is to say that two field picture 1 is corresponding to first view data shown in Figure 1, two field picture 2 is corresponding to second view data shown in Figure 1.Before the sequential chart of carrying out this Fig. 2, second image processing circuit 36 is in holding state.
If operated shutter release button 55, then shutter release switch (SW) is connected (ON), after having carried out AE processing and AF processing, makes a video recording according to being carried out by the photography conditions of AE processing setting.In addition, owing to photograph under burst mode, above-mentioned shooting is carried out repeatedly continuously based on predefined frame rate value.In the shooting each time of repeatedly shooting, the signal charge in imaging apparatus 16 after the opto-electronic conversion exports AFE circuit 22 as picture signal to from imaging apparatus 16.The picture signal that inputs to AFE circuit 22 is implemented gain controlling, removes after the simulation process such as noise, is converted to digital signal.After this, the picture signal that is converted to digital signal exports DFE circuit 23 to from AFE circuit 22.The picture signal that is converted to digital signal has been implemented in DFE circuit 23 after noise compensation processing, the defect correction processing, exports first image processing circuit 31 and second image processing circuit 36 respectively to.In addition, because second image processing circuit 36 is holding state, so the picture signal that inputs to second image processing circuit 36 from DFE circuit 23 becomes invalid signals (data).
On the other hand, the view data that inputs to first image processing circuit 31 is written into first storage area 42 of first buffer storage 41.For example, if the picture signal by making a video recording and obtain for the first time, then the quantity of the view data of storage is 1 in first storage area 42 of first buffer storage 41.
Then, if passed through 0.125 second, then carry out shooting for the second time from shooting for the first time.The view data that obtains based on shooting for the second time writes first storage area 42 of first buffer storage 41 via first image processing circuit 31.Thus, the quantity that is stored in the view data in first storage area 42 of first buffer storage 41 is 2.
The quantity N of 32 pairs of view data of storage in first storage area 42 of first buffer storage 41 of control part confirms.Control part 32 is with view data quantity N and threshold value N in first storage area 42
0(N in the present embodiment
0=1) compares judgement.
For example, in above-mentioned relatively judgement, the view data quantity N in control part 32 is judged as first storage area 42 is at threshold value N
0Under the following situation, be illustrated in after the image processing end to view data, the view data that newly obtains is transfused to first image processing part 31.That is to say, can only carry out image processing by 31 pairs of view data that under burst mode, obtain continuously of first image processing circuit.In this case, first image processing circuit 31 is not to second image processing circuit, 36 output action signals.As a result, second image processing circuit 36 is in holding state.
On the other hand, be judged as view data quantity N at control part 32 and surpass threshold value N
0Situation under, be illustrated in the image processing of view data finished before, the view data that newly obtains just is transfused to first image processing part 31.In this case, the speed of the image processing in first image processing circuit 31 can not be tackled the speed that writes view data to first buffer storage 41, that is to say, expression only can not be tackled by the image processing of first image processing circuit 31.In this case, control part 32 is to second image processing circuit, 36 output action signals.
Control part 37 is accepted the actuating signal from first image processing circuit 31, makes second image processing circuit 36 switch to operate condition from holding state.In addition, " starting " among Fig. 2 is to carry out switching processing from holding state to operate condition.During this processing time, control part 37 is to image processing part 38, coding/decoding portion 39 supply capabilities.Simultaneously, to second buffer storage, 45 supply capabilities.In addition, control part 37 is to image processing part 38, coding/decoding portion 39, second buffer storage, 45 output clock pulse.Thus, second image processing circuit 36 and second buffer storage 45 are moved.
For example, under situation about carrying out with the time shorter than the output gap of the view data starting time of second image processing circuit 36, second image processing circuit 36 will be made a video recording obtained image data storage for the third time in first storage area 46 of second buffer storage 45.On the other hand, because the starting time of in first image processing circuit 31, having stored second image processing circuit 36 in advance, so after second image processing circuit 36 switches to operate condition, be input in the view data that obtains under the situation of first image processing circuit 31, this view data is handled as invalid data.
After this, the image data storage that the 4th time, the 6th time, the 8th time, the tenth time photography is obtained is in first buffer storage 41, and the image data storage that the 5th time, the 7th time, the 9th time photography is obtained is in second buffer storage 45.That is to say that the obtained view data of later for the third time photography is alternately stored.In addition, in Fig. 1, the obtained view data of photographing for the first time is recited as first view data, obtained view data is recited as second view data with photographing for the second time ...In addition, be expressed as first coding data, second coded data with these view data corresponding codes data ...
Also be performed image processing and encoding process during these view data certain in being written into first buffer storage 41 and second buffer storage 45 by first image processing circuit 31 and second image processing circuit 36.For example, in first image processing circuit 31,, begin the obtained view data of photographing is for the first time carried out image processing photographing obtained view data for the second time when first buffer storage 41 writes down.Then, when image processing finishes, carry out encoding process, generate coded data by coding/decoding portion 33.In addition, this coded data is stored in second storage area 43 of first buffer storage 41.Corresponding to this, deletion is as the view data in the source of coded data.
After this, in the process of the image processing in carrying out first image processing circuit 31, new view data is written into first storage area 42 of first buffer storage 41.That is to say that the capacity of first storage area 42 of first buffer storage 41 can be saved the capacity of first buffer storage 41 so long as can store the capacity of three view data and get final product.Equally, in second image processing circuit 36, the obtained view data of making a video recording is for the third time being carried out in the process of image processing, the 5th time the obtained view data of photography is stored in first storage area 46 of second buffer storage 45.That is to say that after this, in the process of the image processing in carrying out first image processing circuit 31, new view data is written into first storage area 42 of first buffer storage 41.Because maximum two view data of storage in first storage area 46 of this second buffer storage 45, so the capacity of first storage area is so long as can store the capacity of two view data and get final product.
If continue to first image processing circuit 31 and second image processing circuit 36 the view data of storing in first storage area of corresponding buffer storage respectively carry out image processing, then for example image processing and the encoding process in second image processing circuit 36 at first finishes.If encoding process finishes in second image processing circuit 36, then second image processing circuit 36 reads out in the coded data of storing in second storage area 47 of second buffer storage 45, exports it to first image processing circuit 31.The coded data that first image processing circuit 31 will be transfused to writes second storage area 43 of first buffer storage 41.Then, the control part 32 of first image processing circuit 31 is accepted the image processing in first image processing circuit 31 and encoding process has finished and in the future the coded data of white second image processing circuit 36 to the information that has finished that writes of second storage area 43 of first buffer storage 41, to second image processing circuit, 36 output action stop signals.
The action stop signal that the control part 37 of second image processing circuit 36 is accepted from first image processing circuit 31, stop to supply with clock pulse, and stop to image processing part 38, coding/decoding portion 39 and second buffer storage, 45 supply capabilities to image processing part 38, coding/decoding portion 39 and second buffer storage 45.
In addition, the view data quantity N in first storage area 42 is threshold value N
0Under the following situation, that is to say, under the situation of the low continuous shooting of conducting frame rate value photography or carry out under the situation of the photography under the rest image pattern, second image processing circuit, 36 former states keep holding state, not to image processing part 38, coding/decoding portion 39 supply capabilities of second image processing circuit 36, so can suppress the waste of power consumption.Like this, using under primary cell or the situation of secondary cell, can improve the durability of these batteries as supply unit.In addition, owing to make second image processing circuit 36 become holding state,, can suppress danger such as the distortion of Digital Video inside or burning so can reduce the heat that sends from the relevant circuit of image processing.In addition, the capacity of first storage area 46 of first buffer storage 41 and second buffer storage 45 can be suppressed be minimal capacity, therefore, can also suppress the capacity of buffer storage integral body.
＜the second execution mode 〉
Below, use description of drawings second execution mode of the present invention.In addition, second execution mode is the judgment standard variation different with first execution mode of control, therefore, the part different with first execution mode only is described.In addition, for the structure identical, use the Reference numeral identical to describe with first execution mode with first execution mode.
First image processing circuit 31 when then, photographing under the burst mode of sequential chart explanation in second execution mode of use Fig. 3 and the flow process of the processing in second image processing circuit 36.In addition, in the sequential chart of Fig. 3, the situation with ten images of frame rate value sequence photography of 8fps is described under burst mode.Each two field picture among this Fig. 3 is corresponding to each view data shown in Figure 1.That is to say that two field picture 1 is corresponding to first view data shown in Figure 1, two field picture 2 is corresponding to second view data shown in Figure 1.In addition, before the sequential chart that carries out this Fig. 3, second image processing circuit 36 is a holding state.
And, identical with first execution mode, to make a video recording with the starting point that is operating as of shutter release button 55, the view data that inputs to first image processing circuit 31 is written into first storage area 42 of first buffer storage 41.For example, if make a video recording for the first time resulting picture signal, the quantity that then is stored in the view data in first storage area 42 of first buffer storage 41 is 1.Corresponding to this, the control part 32 of first image processing circuit 31 picks up counting.
And, when having passed through 0.125 second, carry out shooting for the second time from making a video recording for the first time.The view data that obtains based on shooting for the second time is written into first storage area 42 of first buffer storage 41 via first image processing circuit 31.Thus, the quantity of the view data of storage is 2 in first storage area 42 of first buffer storage 41.Meanwhile, control part 32 stops timing.
Time when control part 32 is obtained timing and stopped, in other words, obtain from make a video recording for the first time the elapsed time of resulting picture signal till make a video recording for the second time resulting picture signal the output gap T that calculates view data thus to the input of first buffer storage 41 to 41 inputs of first buffer storage.The output gap T of 32 pairs of view data of control part and threshold value T
0Compare judgement.In addition, threshold value T
0It is the needed processing time of image processing of the view data in first image processing circuit 31.
For example, in above-mentioned relatively judgement, the output gap T that is judged as view data at control part 32 surpasses threshold value T
0Situation under, be illustrated in the image processing of view data finished after, the view data that newly obtains is transfused to first image processing part 31.That is to say the view data carries out image processing that can only under burst mode, obtain continuously by 31 pairs of first image processing circuits.In this case, first image processing circuit 31 is not to second image processing circuit, 36 output action signals.As a result, second image processing circuit 36 becomes holding state.
On the other hand, the output gap T that is judged as view data at control part 32 is threshold value T
0Under the following situation, be illustrated in before the image processing end to view data, the view data that newly obtains is transfused to first image processing part 31.In this case, the speed of image processing can not be tackled the speed that view data writes first buffer storage 41 in first image processing circuit 31, that is to say, expression only can not be tackled by image processing in first image processing circuit 31.In this case, control part 32 is to second image processing circuit, 36 output action signals.
Control part 37 is accepted the actuating signal from first image processing circuit 31, makes second image processing circuit 36 switch to operate condition from holding state.In addition, " starting " among Fig. 3 is the processing that switches to operate condition from holding state.During this processing time, control part 37 is to image processing part 38, coding/decoding portion 39 supply capabilities.Simultaneously, to second buffer storage, 45 supply capabilities.In addition, control part 37 is to image processing part 38, coding/decoding portion 39, second buffer storage, 45 output clock pulse.Thus, make second image processing circuit 36 and 45 actions of second buffer storage.After, carry out the processing identical with first execution mode.
In addition, the output gap T in view data surpasses threshold value T
0Situation under, that is to say, under the situation of the sequence photography that the conducting frame rate value is low or carry out under the situation of the photography under the rest image pattern, second image processing circuit, 36 former states keep holding state, not to image processing part 38, coding/decoding portion 39 supply capabilities of second image processing circuit 36, so can suppress the waste of power consumption.Like this, using under primary cell or the situation of secondary cell, can improve the durability of these batteries as supply unit.In addition, owing to make second image processing circuit 36 be holding state,, can suppress danger such as the distortion of Digital Video inside or burning so can reduce the heat that sends from the relevant circuit of image processing.In addition, the capacity of first storage area 46 of first buffer storage 41 and second buffer storage 45 can be suppressed be minimal capacity, therefore, can also suppress the capacity of buffer storage integral body.
In the present embodiment, the output gap of measurement image data, and judge whether the output gap of measured view data surpasses threshold value, but be not limited thereto, for example, can measure the output gap of horizontal-drive signal in the imaging apparatus.In addition, can also utilize the frame rate value under the burst mode, frame rate value and threshold value are compared.In this case, the different a plurality of burst modes of frame rate value are being set, the burst mode that frame rate value is low is as low burst mode, under the situation of burst mode that frame rate value is high, can constitute and only under the situation of high burst mode, make the action of second image processing circuit as high burst mode.In addition, this frame rate value can be by setting the operation of setting operation portion 55.
In the present embodiment, the relevant disposal ability of setting in first image processing circuit and second image processing circuit of image processing is identical, but is not limited thereto.For example under the situation of two image processing circuits with different image-capable, can make relevant high image processing circuit one direct acting of disposal ability of image processing, make another image processing circuit action based on the output gap of view data.
In the present embodiment, enumerated the example of two image processing circuits of first image processing circuit 31 and second image processing circuit 36, but be not limited thereto, also can be, image processing apparatus more than three is set, decides the number of the image processing circuit that moves based on the output gap of view data.
In the present embodiment, output gap based on the view data that obtains, whether decision makes 36 actions of second image processing circuit, but except output gap based on view data, can also be based on the output resolution ratio of the view data of exporting from imaging apparatus 16 or the data capacity of view data, whether decision makes 36 actions of second image processing circuit.Under situation, can make 36 actions of second image processing circuit under the high-resolution situation of defined threshold for surpassing at the output resolution ratio of view data based on output resolution ratio.Under situation based on the data capacity of view data, can infer data capacity based on the output resolution ratio of view data, surpass under the situation of defined threshold at data capacity, make 36 actions of second image processing circuit.
Claims (15)
1. an electron camera is characterized in that,
This electron camera possesses:
Imaging apparatus, output is by carrying out the view data that opto-electronic conversion obtains to object light continuously;
Buffer storage, temporary transient storage is from the view data of above-mentioned imaging apparatus output;
A plurality of image processing parts can be to implementing image processing from the view data of above-mentioned imaging apparatus output; And
Control part, when above-mentioned imaging apparatus has been exported view data continuously, based on the quantity of the above-mentioned view data of in above-mentioned buffer storage, storing, the image processing part that the view data of continuous output is implemented image processing is respectively moved.
2. electron camera according to claim 1 is characterized in that,
Above-mentioned a plurality of image processing part comprises: first image processing part, no matter how all to move from the output state of the view data of above-mentioned imaging apparatus output; And second image processing part, above-mentioned control part moves this second image processing part;
Above-mentioned control part moves above-mentioned second image processing part based on the quantity of the above-mentioned view data of storing in above-mentioned buffer storage.
3. electron camera according to claim 1 is characterized in that,
Above-mentioned control part is based on the result that the quantity and the pre-set threshold of the above-mentioned view data of storing in above-mentioned buffer storage compares, and the image processing part that the view data of above-mentioned continuous output is implemented image processing is respectively moved.
4. electron camera according to claim 3 is characterized in that,
The quantity of the above-mentioned view data in being stored in above-mentioned buffer storage surpasses under the situation of above-mentioned threshold value, and above-mentioned control part moves the image processing part that the view data of above-mentioned continuous output is implemented image processing respectively.
5. an electron camera is characterized in that,
This electron camera possesses:
Imaging apparatus, output is by carrying out the view data that opto-electronic conversion obtains to object light continuously;
A plurality of image processing parts can be to implementing image processing from the view data of above-mentioned imaging apparatus output; And
Control part when above-mentioned imaging apparatus has been exported view data continuously, based on the output gap of above-mentioned view data, makes among above-mentioned a plurality of image processing part the image processing part that the view data of continuous output is implemented image processing respectively move.
6. electron camera according to claim 5 is characterized in that,
Above-mentioned a plurality of image processing part comprises: first image processing part, no matter how all to move from the output state of the view data of above-mentioned imaging apparatus output; And second image processing part, above-mentioned control part moves this second image processing part;
Above-mentioned control part moves above-mentioned second image processing part based on the output gap of above-mentioned view data.
7. electron camera according to claim 5 is characterized in that,
Above-mentioned control part is based on the result that the output gap and the pre-set threshold of above-mentioned view data compares, and the image processing part that the view data of above-mentioned continuous output is implemented image processing is respectively moved.
8. electron camera according to claim 7 is characterized in that
Under the output gap of above-mentioned view data was situation below the above-mentioned threshold value, above-mentioned control part moved the image processing part that the view data of above-mentioned continuous output is implemented image processing respectively.
9. electron camera according to claim 5 is characterized in that,
The time of the vertical synchronizing signal of the output gap of above-mentioned view data output when measuring from the shooting beginning till the vertical synchronizing signal of output is next time obtained.
10. electron camera according to claim 5 is characterized in that,
This electron camera possesses setting operation portion, and when setting the output gap of above-mentioned view data, this setting operation portion is operated.
11. an electron camera is characterized in that,
This electron camera possesses:
Imaging apparatus, output is by carrying out the view data that opto-electronic conversion obtains to object light continuously;
A plurality of image processing parts can be to implementing image processing from the view data of above-mentioned imaging apparatus output; And
Control part, when above-mentioned imaging apparatus has been exported view data continuously, based on output resolution ratio, the image processing part that the view data of continuous output is implemented image processing is respectively moved from the above-mentioned view data of above-mentioned imaging apparatus output.
12. electron camera according to claim 11 is characterized in that,
Above-mentioned a plurality of image processing part comprises: first image processing part, no matter how all to move from the output state of the view data of above-mentioned imaging apparatus output; And second image processing part, above-mentioned control part moves this second image processing part;
Above-mentioned control part moves above-mentioned second image processing part based on the output resolution ratio of above-mentioned view data.
13. electron camera according to claim 11 is characterized in that,
Above-mentioned control part is based on the result that the output resolution ratio and the pre-set threshold of above-mentioned view data compares, and the image processing part that the view data of above-mentioned continuous output is implemented image processing is respectively moved.
14. electron camera according to claim 13 is characterized in that,
Surpass under the situation of above-mentioned threshold value at the output resolution ratio of above-mentioned view data, above-mentioned control part moves the image processing part that the view data of above-mentioned continuous output is implemented image processing respectively.
15. according to each described electron camera in the claim 1,5 or 11, it is characterized in that,
During situation that the image processing part that the moves image processing in separately that above-mentioned control part receives has at least finished, the image processing part that moves by above-mentioned control part is stopped.
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| US9473701B2 (en) | 2016-10-18 |
| JP5088395B2 (en) | 2012-12-05 |
| US20150181119A1 (en) | 2015-06-25 |
| JP2011228808A (en) | 2011-11-10 |
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